Copy-holder.



G. A. MARSH.

COPY HGLDER.

APPLICATION FILED NOV. 4, 1910.

@Qgm Patented June 13, 1911.

GEORG-E A. MARSH, 0F WASHINGTON, DISTRICT 0F COLUMBIA, ASSIGNOR TO HELICOID COPYLINER COMPANY, A CORPORATION OF DELAWARE.

COPY-HULIDER.

Specification of Letters Patent.

Patented June 13, i911.

Application tiled November 4, 191i). Serial No. 590,752.

To all whom t may conce/Mi.'

Be it known that I, GEORGE A. MARSH, a citizen ot the United States of America, and resident of Washington, in the District of Columbia, have invented certain new and useful Improvements in Copy-Holders, of which the followingA is a specification.

rlhe invention forming the subject matter of this application is directed more particularly to copy holders of a type that have a line indicator which is movable over the copy step by step and the device illustrated herein is designed more particularly for the use of typists in transcribing from copy, and the illustration shows the novel and essential elements of my invention for such purposes though the same construction may be used for other analogous purposes with obvious modifications of the details.

One of the objects of the invention is to provide a copy holder or support with a line indicatorwhich may be readily moved by hand in either direction over the copy, a part that engages or carries the line indicator being rotatable to impart movement `to the line indicator whereby the same may be caused to travel.

In the make-up of my invention I embody with helicoidal or spirally twisted bar, a carrier which is maintained in slide-ble relation with the bar, the carrier having associated therewith a line indicator and I also associate with the bar means other than the carrier for rotating the same to effect movement of the line indicator for a predetermined distance over the copy.

In the construction of my improvement, due regard has been paid to the practical embodiment of the means whereby, in operation, the device will be practically noiseless, durable, precise as to the distance to be traveled by the line indicator when the key or space bar is actuated, easily operated to move the line indicator either up or down over the copy by hand or to move the same by the actuation of a key or spacel bar as the operator may desire, all as will hereinafter appear in the accompanying specification.

In the accompanying drawings Figure 1 illust-rates a front .elevation showing a standard type of= copy holder with my improvements applied thereto; Fig. 2 illustrates a rear elevation; Fig. 'illustrates a sectional View taken on the line 3-3 of Fig. l; Fig. 4 illustrates a plan view of the upper portion of the copy holder; Fig. 5 illustrates a section on the line 5-5 of Fig. l; Fig. 6 illustrates a rear elevation showing a part of a modified form of connections between the helicoidal bar and the spacing har; Figs. 7, 8 and 9 illustrate detail views.

Referring to the drawings which show an adaptation of my invention to a standard form of copy holder, the platen 1 and the base 2 are both of ordinary construction, the platen having a ledge 3 upon which the copy may rest. The platen has in hinged engage' nient with its upper portion a fiat bar or plate A that carries one or more spring leaves B which are intended to engage the copy and hold the same against the platen when the hooked end of the bar engages the platen on the opposite side from which it is hinged. The platen has formed integral therewith or attached thereto plates or brackets 6 and 'l' which maintain revoluble journals 8 and 9 for a spirally twisted or helicoidal bar l0, which is maintained in parallel relation to the part to which it is attached, as the platen l. rIhe pitch of the helicoidal bar is such as to permit a carrier, to be hereinafter described, to move longitudinally of the bar by pressure applied to the said carrier. The brackets maintained by the support are fixed and the journals attached adjacent to the ends of a helicoidal bar are revoluble in the brackets; said journals being fastened to the bar in any suitable manner and said helicoidal bar between the brackets has mounted thereon a non-rotative carrier 11 to which the line indicator 12 is connected, preferably by a swinging plate or link 13 that is hinged to the carrier at one end, the line indicator being hinged to the other end ofgthe link so that the link will automatically adjust itself and the line indicator to the copy as to the thickness or number of sheets placed upon the platen. This construction permits the line indicator to assume positions parallel with the copy even though said copy may bulge from the platen or have creases therein. The carrier is held against turning by reason of its structure presenting fiat surfaces which-lie .parallel to and engage the faces of the platen.

The carrier` 11, is preferably provlded with flanges C and D, and a guide tube 14' may be p aced between the flanges. plate E 1s shown in the drawing as having an aperture 15 to receive the helicoidal bar, the walls of said aperture engaging the helicoidal bar. The helicoidal bar is shown also as passing through the tube, which tube serves the unctlon of preventing other movement of the carrier than that longitudinally of the bar. The relation of the carrier to the helicoidal bar and the pitch of .its spirals is such that the'carrier can be reciprocated -by hand and when so moved will rotate the helicoidal bar and when the helicoidal bar is rotated, a chan e of position of the carrier upon the helicoldal bar will be effected. The line indicator 12 is formed with apertured lugsvF for the reception of a pintle G which pintle passes through ears G of the link 13; the said link or art 13 being hinged to the carrier. The ink 13l has ears H which receive the pintle I extending through the ange's C andD of the carrier.

To provide for the rotation of the helicoidal bar in one direction to effect a step by step movement of the line indicator over the copy by actuating a space bar or key, there is connected to the lower end of the rod 10 below the bracket 7, the bearing 9 which is in the form of a sleeve, the said bearing 9 being connected to a sleeve 16, the bearing 9 carrying a fixed collar 17 against which a reduced portion at the upper end of the sleeve 16 abuts to provide between the collar and the sleeve a recess for the reception of an arm 18 which carries a dog 19, such dog being pivoted to the arm to be Susceptible of engagement with a collar 17 and when in engagement movement of the dog will eiect a rotative movement. of the collar 417 and space bar. The dog is pivotally connected to thearm 18 by a pin or screw 20 which depends below the arm to be engaged by one end of a coiled sprin which encicles the sleeve 16, its other endeing made fast to the bracket 7 by means of a pin J which depends therefrom. The spring 21 will move the arm so that the dog maintained thereby will be out of engagement with the collar, such spring also operatin to assist in maintaining the space bar or ey in position to be moved downward to ei'ect a clutch engagement of the dog with the collar and it will be noted that when the dog and collar are out of engagement which is their normal position, the carrier may be moved either up or down over the copy. as the bar will vnot be restricted or held against a rotary movement.

The lower portion of the platen 1 has beneath the copy. supporting ledge, brackets 22 which vmaintain a bar 23 upon which 1s pivoted a space bar or depressible key 24, lsuch key being provided w1t-h arms 25 that maintain the space bar forward of the ledge of the platen,"such arms contacting with the under side of the ledge Fig. 3 to'limit the upward movement of the space bar and-the space bar4 carries a rearward extending arm 26 that is connected b a link y27 to av lever 28, such lever being ulcrumed to the rear face of the platen 1 on a pivotal pin K,

which lever is in turn connected with a dog 19 on the arm 18 andby means of the con-v nection shown, or .the mechanical equivalent thereof, when the space bar is 'depressed by the typist the 4lever 28 vwill be moved upward to act upon the dog and bring it 1n contact with the collar 17, thus moving the.

dog and arm against the action of the spring and imparting' a rotative movement to the spiral bar 10 V*which effects a downward movement of the carrier and line indicator.

The lever 28 may be'of the bell crank type shown in* Fig. 2 in which instance its arm 29 will be connected to-the dog by a rod 30 and when a straight'lever is used, the .means for connecting the lever with 'a dog may be by a flexible connection 31V which extends from the end of the lever 28 about a guide roller 32 and from thence to the dog 19.

It willibe noted that whenthe space bar is in its normal raised Aposition the dog will be maintained out of'l contact with a collar and t-he space bar and correlated parts will be out of operative relation with a helicoidal bar and will only be brought into operative relation therewith when the space bar is depressed. When the space bar is depressed the lever will be moved vand its movement may be arrested .by a suitable adjustable ga e. y

is shown by Fig. 2 of the drawings the stop gage for limitmg the movement of the lever `and space bar may consist of a mov-vv able member 34 maintained in sliding en-A gagement with the platen, the same being suitably guided 'and provided with ajpro-i operator willset the gage to suit the maj-or portion of the copy, movin the line indicator and carrier by hand w en the copy is lrregular as to lining, the sacing of irregu lar copy may also be met 'xhy a partial depression of the space bar so asto effect less one? 'than a full movement downward of the liner marker. :ln the operation the carrier will be moved very frequently by direct contact therewith particularly whenthere are large spaces or cancellations in the copy.

Fig. 7 shows a modification of an adjustable gage in which a screw M is used for contact for the buifer on the lever 28, such screw being carried by a bracket N adapted to be attached to the platen and the bracket is'provided with gagemarks 36 located in line with the milled head G of the screw and this screw carries a jam nut P which would impinge against the bracket and hold the screw in adjusted position.

As before noted the dog and ring or bant are adapted for frictional engagement of one part with `the other and as the ring or band has a smooth surface Where it is engaged by the dog and the shape and supportv of the dog is such that a depression of the space bar will e'ect frictional engagement'only of these parts suiiicient in practice to turn the handle or spirally twisted bar and should the line indicator be in its lowest position, to wit, in engagement with `the ledge, the resistance will effect a slippage or sliding of the dog over the ring and this is one or' the reasons for providing rounded contact surfaces between the dog and ring instead of a positive connection as a pawl and ratchet or -a similar type of clutch.

l claim- 1. in a copy holder, a copy support, a non rotatable carrier, a helicoidal bar mounted on the copy support and to which the carrier is applied, the said bar having a pitch of such degree as to rmit the carrier tomove longitudinally t erect in either direction by pressure on the carrier, a line indicator associated with the carrier and eX- tending across the copy support, and means for rotating the helicoidal bar.

2. in a copy holder, the combination with a support, a carrier having a line indicator,

a spirally twisted vbar maintained in operative relation with the support and free to rotatein either direction and on which the carrier is mounted, the, pitch of the spiral of the twisted bar being of such degree as to permit the carrier to move longitudinally thereof in either direction by torce applied to the carrier, and means for imparting partial rotary motion to the spirally twisted bar touetiect the movement in one direction only of the carrier with relation to the support.

3. ln a copy holder, a support, a spirally twisted har having its edges pitched to admit of the rotation thereoi3 by a sliding movement of a carrier thereon, means for mounting theI twisted bar normally free to rotate in either direction, a carrier slidably` mounted on said bar and held against rotative movement by engagement with the support, means for turning the bar to eiect movement ofthe carrier in the direction of the length of the bar, and aline indicator maintained by the carrier.

4. ln a copy holder, a support, a helicoidal bar maintained in rotative engagement with the support and normally free to he turned in either direction, a carrier mounted upon thebar and heldin non-rotative engagement therewith, the degree of pitch of the helicoidal bar being such as to permit free movement oi the carrierlongitudinally thereof, a line indicator connected to the carrier, means normally out of operative engagement with the bar or rotating the same, and manually actuated means for imparting a movement to the har lrotating means in a direction which will move the carrier and its connected line indicator in one direction over the support, the parts being organized so that the carriery is normally tree to be moved manually in either direction longitudinally upon 'thebar when the second rotating means for the bar is out of operative engagement therewith.

5. In a copy holder, a support, a spiral bar maintained in rotative engagement with \`the support, a non-rotative carrier which is parting a rotary' mot-ion to the bar 'to move the carrier and the line indicator thereon comprising means having smooth engaging surfaces which are adapted to be brought in yl'rictional contact to eli'ect a rotation of the bar when under a strain, the organization being such that one of the surfaces which irictionally engages may slip or slide upon the other surface when the rota'tionof the bar is restrained.

7. In a copy holder, a copy support, a helicoidal bar mounted to rotate in operative relation 'to the copy support, a carrier having an aperture to receive the helicoidal bar, the walls of said aperture being engaged by said bar, means on the carrier for engaging the copy support to prevent rotation of said carrier, a line indicator on the carrier, sleeves to which 'the helicoidal bar' is connected, an arm extending from the sleeve', a collarxed lto one of the sleeves, a fixed my signature in the presence of two do pivoted on the arm and engaging the Witnesses. co1 ar to turn thehelcoidal bar, means for manually actuating the dog in one direction9 .GEORGE A MARSH' and mechanical means for retracting the Witnesses: said do LATTIn E. BARKLEY, In testimony whereof, I have hereunto a= FREDK. C. HANDY. 

